{
 "cells": [
  {
   "cell_type": "markdown",
   "id": "aa2cad6f",
   "metadata": {},
   "source": [
    "--------\n",
    "* 2022-10-25\n",
    "* week10\n",
    "* 记录人：拆拆"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "f6c95c1b",
   "metadata": {},
   "source": [
    "# 上周回归\n",
    "> 1. while循环：while True-->无限循环\n",
    ">> 1. 指定次数，while True 可以实现for循环的指定次数，增加一个count计数器即可。\n",
    ">> 2. while True 一般与用户输入一起使用，让用户可以重复输入直到某些条件成立结束输入。（eg.购物车）\n",
    "> 2.购物车实践（平时作业） \n",
    "# 本周内容\n",
    "> 1. 元组\n",
    "> 2. 集合\n",
    "> 3. 字典"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "558a5738",
   "metadata": {},
   "source": [
    "# 1.元组（tuple）\n",
    "\n",
    "> 1. 元组的基本内容（形态、定义）\n",
    "> 2. 元组的性质\n",
    ">> 1. 有序性（indexing, sliceing)\n",
    ">> 2. <font color=\"red\">**不可变性**</font>,元组没有：增、删、改\n",
    "> 3. 元组的一般方法"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "id": "39cf7891",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "(1800001, 1800002, 1800003) <class 'tuple'>\n"
     ]
    }
   ],
   "source": [
    "网三_学号 = (1800001,1800002,1800003)\n",
    "print(网三_学号,type(网三_学号))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "id": "c534209f",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "(1900001, 1900002, 1900003) <class 'tuple'>\n"
     ]
    }
   ],
   "source": [
    "网二_学号 = 1900001,1900002,1900003\n",
    "print(网二_学号,type(网二_学号))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "id": "d5779c6c",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "1900001"
      ]
     },
     "execution_count": 4,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "网二_学号[0]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "id": "56851db1",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "(1900002, 1900003)"
      ]
     },
     "execution_count": 5,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "网二_学号[1:]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "id": "eac4fb7a",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "time.struct_time(tm_year=2022, tm_mon=10, tm_mday=25, tm_hour=15, tm_min=6, tm_sec=19, tm_wday=1, tm_yday=298, tm_isdst=0)"
      ]
     },
     "execution_count": 6,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "# 元组的实际案例\n",
    "import time\n",
    "time.localtime()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "id": "2575f01e",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Help on struct_time object:\n",
      "\n",
      "class struct_time(builtins.tuple)\n",
      " |  struct_time(iterable=(), /)\n",
      " |  \n",
      " |  The time value as returned by gmtime(), localtime(), and strptime(), and\n",
      " |  accepted by asctime(), mktime() and strftime().  May be considered as a\n",
      " |  sequence of 9 integers.\n",
      " |  \n",
      " |  Note that several fields' values are not the same as those defined by\n",
      " |  the C language standard for struct tm.  For example, the value of the\n",
      " |  field tm_year is the actual year, not year - 1900.  See individual\n",
      " |  fields' descriptions for details.\n",
      " |  \n",
      " |  Method resolution order:\n",
      " |      struct_time\n",
      " |      builtins.tuple\n",
      " |      builtins.object\n",
      " |  \n",
      " |  Methods defined here:\n",
      " |  \n",
      " |  __reduce__(...)\n",
      " |      Helper for pickle.\n",
      " |  \n",
      " |  __repr__(self, /)\n",
      " |      Return repr(self).\n",
      " |  \n",
      " |  ----------------------------------------------------------------------\n",
      " |  Static methods defined here:\n",
      " |  \n",
      " |  __new__(*args, **kwargs) from builtins.type\n",
      " |      Create and return a new object.  See help(type) for accurate signature.\n",
      " |  \n",
      " |  ----------------------------------------------------------------------\n",
      " |  Data descriptors defined here:\n",
      " |  \n",
      " |  tm_gmtoff\n",
      " |      offset from UTC in seconds\n",
      " |  \n",
      " |  tm_hour\n",
      " |      hours, range [0, 23]\n",
      " |  \n",
      " |  tm_isdst\n",
      " |      1 if summer time is in effect, 0 if not, and -1 if unknown\n",
      " |  \n",
      " |  tm_mday\n",
      " |      day of month, range [1, 31]\n",
      " |  \n",
      " |  tm_min\n",
      " |      minutes, range [0, 59]\n",
      " |  \n",
      " |  tm_mon\n",
      " |      month of year, range [1, 12]\n",
      " |  \n",
      " |  tm_sec\n",
      " |      seconds, range [0, 61])\n",
      " |  \n",
      " |  tm_wday\n",
      " |      day of week, range [0, 6], Monday is 0\n",
      " |  \n",
      " |  tm_yday\n",
      " |      day of year, range [1, 366]\n",
      " |  \n",
      " |  tm_year\n",
      " |      year, for example, 1993\n",
      " |  \n",
      " |  tm_zone\n",
      " |      abbreviation of timezone name\n",
      " |  \n",
      " |  ----------------------------------------------------------------------\n",
      " |  Data and other attributes defined here:\n",
      " |  \n",
      " |  n_fields = 11\n",
      " |  \n",
      " |  n_sequence_fields = 9\n",
      " |  \n",
      " |  n_unnamed_fields = 0\n",
      " |  \n",
      " |  ----------------------------------------------------------------------\n",
      " |  Methods inherited from builtins.tuple:\n",
      " |  \n",
      " |  __add__(self, value, /)\n",
      " |      Return self+value.\n",
      " |  \n",
      " |  __contains__(self, key, /)\n",
      " |      Return key in self.\n",
      " |  \n",
      " |  __eq__(self, value, /)\n",
      " |      Return self==value.\n",
      " |  \n",
      " |  __ge__(self, value, /)\n",
      " |      Return self>=value.\n",
      " |  \n",
      " |  __getattribute__(self, name, /)\n",
      " |      Return getattr(self, name).\n",
      " |  \n",
      " |  __getitem__(self, key, /)\n",
      " |      Return self[key].\n",
      " |  \n",
      " |  __getnewargs__(self, /)\n",
      " |  \n",
      " |  __gt__(self, value, /)\n",
      " |      Return self>value.\n",
      " |  \n",
      " |  __hash__(self, /)\n",
      " |      Return hash(self).\n",
      " |  \n",
      " |  __iter__(self, /)\n",
      " |      Implement iter(self).\n",
      " |  \n",
      " |  __le__(self, value, /)\n",
      " |      Return self<=value.\n",
      " |  \n",
      " |  __len__(self, /)\n",
      " |      Return len(self).\n",
      " |  \n",
      " |  __lt__(self, value, /)\n",
      " |      Return self<value.\n",
      " |  \n",
      " |  __mul__(self, value, /)\n",
      " |      Return self*value.\n",
      " |  \n",
      " |  __ne__(self, value, /)\n",
      " |      Return self!=value.\n",
      " |  \n",
      " |  __rmul__(self, value, /)\n",
      " |      Return value*self.\n",
      " |  \n",
      " |  count(self, value, /)\n",
      " |      Return number of occurrences of value.\n",
      " |  \n",
      " |  index(self, value, start=0, stop=9223372036854775807, /)\n",
      " |      Return first index of value.\n",
      " |      \n",
      " |      Raises ValueError if the value is not present.\n",
      " |  \n",
      " |  ----------------------------------------------------------------------\n",
      " |  Class methods inherited from builtins.tuple:\n",
      " |  \n",
      " |  __class_getitem__(...) from builtins.type\n",
      " |      See PEP 585\n",
      "\n"
     ]
    }
   ],
   "source": [
    "help(time.localtime())"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 13,
   "id": "1d377756",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "([1, 2, 3, 4], [3, 4, 5, 6]) <class 'tuple'> 2264278309056\n",
      "[1, 2, 3, 4] 2264278275008\n"
     ]
    }
   ],
   "source": [
    "tuple_test = ([1,2,3,4],[3,4,5,6])\n",
    "print(tuple_test,type(tuple_test),id(tuple_test))\n",
    "print(tuple_test[0],id(tuple_test[0]))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "id": "ead68ae3",
   "metadata": {},
   "outputs": [],
   "source": [
    "tuple_test[0].append(100)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 14,
   "id": "ccb0daab",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "([1, 2, 3, 4], [3, 4, 5, 6]) <class 'tuple'> 2264278309056\n",
      "[1, 2, 3, 4] 2264278275008\n"
     ]
    }
   ],
   "source": [
    "print(tuple_test,type(tuple_test),id(tuple_test))\n",
    "print(tuple_test[0],id(tuple_test[0]))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "b8bb85a8",
   "metadata": {},
   "outputs": [],
   "source": [
    "# 一般情况下， 元组里面存放的是 常量（不可变） ，何为常量：数字、字符串\n",
    "#                      不存放   变量 ，如 列表，字典"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "f08a1bd7",
   "metadata": {},
   "source": [
    "## 2.集合（sets）\n",
    "> 1. 集合的基本概念\n",
    ">> 1. 性质：没有重复项\n",
    ">> 2. 性质：无序性\n",
    "> 2. 集合的一般方法\n",
    ">> 1. 集合的运算;&   ，  |\n",
    ">> 2. 集合的一般方法:intersection,"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 16,
   "id": "b9ac261c",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "['apple', 'orange', 'apple', 'pear', 'orange', 'banana']\n",
      "{'pear', 'orange', 'banana', 'apple'}\n"
     ]
    }
   ],
   "source": [
    "basket_list = ['apple','orange','apple','pear','orange','banana']\n",
    "basket_sets = {'apple','orange','apple','pear','orange','banana'}\n",
    "print(basket_list)\n",
    "print(basket_sets)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 17,
   "id": "88faade0",
   "metadata": {},
   "outputs": [
    {
     "ename": "TypeError",
     "evalue": "'set' object is not subscriptable",
     "output_type": "error",
     "traceback": [
      "\u001b[1;31m---------------------------------------------------------------------------\u001b[0m",
      "\u001b[1;31mTypeError\u001b[0m                                 Traceback (most recent call last)",
      "Input \u001b[1;32mIn [17]\u001b[0m, in \u001b[0;36m<cell line: 1>\u001b[1;34m()\u001b[0m\n\u001b[1;32m----> 1\u001b[0m \u001b[43mbasket_sets\u001b[49m\u001b[43m[\u001b[49m\u001b[38;5;241;43m2\u001b[39;49m\u001b[43m]\u001b[49m\n",
      "\u001b[1;31mTypeError\u001b[0m: 'set' object is not subscriptable"
     ]
    }
   ],
   "source": [
    "basket_sets[2]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 18,
   "id": "c53b8f70",
   "metadata": {},
   "outputs": [],
   "source": [
    "舞蹈社 = {1801,1802,1803,1809,1811,1812}\n",
    "电竞社 = {1808,1822,1802,1801,1888,1899}"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "81aa08d8",
   "metadata": {},
   "source": [
    "* 集合的与运算，交集"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 19,
   "id": "8c440f80",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{1801, 1802}"
      ]
     },
     "execution_count": 19,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "舞蹈社 & 电竞社"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 20,
   "id": "2d571a71",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{1801, 1802}"
      ]
     },
     "execution_count": 20,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "舞蹈社.intersection(电竞社)"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "430f6ebe",
   "metadata": {},
   "source": [
    "* 集合的或运算，并集"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 21,
   "id": "33b11b49",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{1801, 1802, 1803, 1808, 1809, 1811, 1812, 1822, 1888, 1899}"
      ]
     },
     "execution_count": 21,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "舞蹈社 | 电竞社"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 22,
   "id": "a23d7d40",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "10"
      ]
     },
     "execution_count": 22,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "len(舞蹈社 | 电竞社)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 23,
   "id": "87e68a2b",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{1801, 1802, 1803, 1808, 1809, 1811, 1812, 1822, 1888, 1899}"
      ]
     },
     "execution_count": 23,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "舞蹈社.union(电竞社)"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "7ddfcad7",
   "metadata": {},
   "source": [
    "## 3. 字典（dict）"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "08a75d23",
   "metadata": {},
   "source": [
    "\n",
    "> 1. 字典的基本概念：\n",
    ">> 1. 字典性质：\n",
    ">>> 1.无序性\n",
    ">>> 2.keys 是不可变的:就像列表、字符串等有序的数据结构他的index不可变是一样的。\n",
    ">>> 3. keys是唯一的\n",
    ">>2. 字典的形态\n",
    ">2. 字典的一般方法\n",
    ">> 1. 字典的创建\n",
    ">> 2. 字典的函数和方法\n",
    ">>> 1. 增加\n",
    ">>> 2. 删除\n",
    ">>> 3. 修改"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "fd08d99c",
   "metadata": {},
   "source": [
    "### 3.1 字典的性质和概念"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 37,
   "id": "6a1c4ff5",
   "metadata": {},
   "outputs": [],
   "source": [
    "网新二班 = {\n",
    "    1800001:\"李一峰\",\n",
    "    1800002:\"Jack\",\n",
    "    1800003:\"Mark\",\n",
    "    1800004:\"周杰伦\"  \n",
    "}"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 28,
   "id": "e0ee0ef3",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{1800001: '李一峰', 1800002: 'Jack', 1800003: 'Mark', 1800004: '周杰伦'} <class 'dict'>\n"
     ]
    }
   ],
   "source": [
    "print(网新二班,type(网新二班))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "b2fe9d01",
   "metadata": {},
   "outputs": [],
   "source": [
    "# 因为学号是唯一的，可以作为字典的key\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 29,
   "id": "8b6185ef",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{1800001: '李一峰', 1800002: 'Jack', 1800003: 'Mark', 1800004: '周杰伦', 1800005: 'Jack'} <class 'dict'>\n"
     ]
    }
   ],
   "source": [
    "网新三班 = {\n",
    "    1800001:\"李一峰\",\n",
    "    1800002:\"Jack\",\n",
    "    1800003:\"Mark\",\n",
    "    1800004:\"周杰伦\",\n",
    "    1800005:\"Jack\"\n",
    "}\n",
    "print(网新三班,type(网新三班))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 30,
   "id": "ad3bab23",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'周杰伦'"
      ]
     },
     "execution_count": 30,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "# 字典的取值:通过keys 进行字典的取值， unlike列表和元组和字符串通过index取值\n",
    "网新三班[1800004]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 35,
   "id": "63adb759",
   "metadata": {},
   "outputs": [],
   "source": [
    "网新三班 = {\n",
    "    1800001:[\"李一峰\",\"广州\",\"男\",\"19\",\"聊天记录\",\"朋友圈\"],\n",
    "    1800002:\"Jack\",\n",
    "    1800003:\"Mark\",\n",
    "    1800004:\"周杰伦\",\n",
    "    1800005:\"Jack\"\n",
    "}"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 36,
   "id": "eed91780",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['李一峰', '广州', '男', '19', '聊天记录', '朋友圈']"
      ]
     },
     "execution_count": 36,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "网新三班[1800001]"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "dfec8643",
   "metadata": {},
   "source": [
    "## 3.2 字典的一般方法\n",
    "* > 1. 按照字典的形式直接创建（key：value）\n",
    " 网新二班 = {\n",
    "    1800001:\"李一峰\",\n",
    "    1800002:\"Jack\",\n",
    "    1800003:\"Mark\",\n",
    "    1800004:\"周杰伦\"  \n",
    "}\n",
    "...\n",
    "\n",
    "\n",
    "* > 2. 使用dict（）方法创建字典\n",
    "网新四班 = dict(\n",
    "    stu1800001=\"李一峰\",\n",
    "    stu1800002=\"Jack\",\n",
    "    stu1800003=\"Marry\",\n",
    "    stu1800004=\"周杰伦\"\n",
    "\n",
    ")\n",
    "...\n",
    "\n",
    "* > 3. 使用字典增加的方式创建字典\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 39,
   "id": "891302cc",
   "metadata": {},
   "outputs": [],
   "source": [
    "# 使用dict（）方法创建字典\n",
    "\n",
    "网新四班 = dict(\n",
    "    stu1800001=\"李一峰\",\n",
    "    stu1800002=\"Jack\",\n",
    "    stu1800003=\"Marry\",\n",
    "    stu1800004=\"周杰伦\"\n",
    "\n",
    ")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 40,
   "id": "7eb77a60",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{'stu1800001': '李一峰',\n",
       " 'stu1800002': 'Jack',\n",
       " 'stu1800003': 'Marry',\n",
       " 'stu1800004': '周杰伦'}"
      ]
     },
     "execution_count": 40,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "网新四班"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 43,
   "id": "a5508f95",
   "metadata": {},
   "outputs": [],
   "source": [
    "# 使用字典增加的方式创建字典 ： dict[key] = value\n",
    "网新一班_keys = [\"stu1800001\",\"stu1800002\",\"stu1800003\",\"stu1800004\"]\n",
    "网新一班 = {}\n",
    "网新一班[\"stu1800001\"] = '李一峰'\n",
    "网新一班[\"stu1800002\"] = 'Jack'\n",
    "网新一班[\"stu1800003\"] = 'Marry'\n",
    "网新一班[\"stu1800004\"] = '周杰伦'"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 44,
   "id": "a90dc968",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{'stu1800001': '李一峰',\n",
       " 'stu1800002': 'Jack',\n",
       " 'stu1800003': 'Marry',\n",
       " 'stu1800004': '周杰伦'}"
      ]
     },
     "execution_count": 44,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "网新一班"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 45,
   "id": "95321083",
   "metadata": {},
   "outputs": [],
   "source": [
    "网新一班_keys = [\"stu1800001\",\"stu1800002\",\"stu1800003\",\"stu1800004\"]\n",
    "网新一班_values = ['李一峰','Jack','Marry','周杰伦']\n",
    "网新一班 = {}\n",
    "for i in range(4):\n",
    "    网新一班[网新一班_keys[i]] = 网新一班_values[i]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 46,
   "id": "66b737ba",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{'stu1800001': '李一峰',\n",
       " 'stu1800002': 'Jack',\n",
       " 'stu1800003': 'Marry',\n",
       " 'stu1800004': '周杰伦'}"
      ]
     },
     "execution_count": 46,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "网新一班"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "72ef86ec",
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Python 3 (ipykernel)",
   "language": "python",
   "name": "python3"
  },
  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
   "version": "3.9.12"
  }
 },
 "nbformat": 4,
 "nbformat_minor": 5
}
